I just wanted to kick off this year’s resources thread.
There’s the Ubiquitous Compile -n- Shrink HTTP Service from Riven:
http://www.indiespot.net/app/java-four-kay
And of course last year’s resources thread.
In addition, I’ve started looking at a Bytecode Outline plugin for Eclipse that can help in tracking down those last extra bytes
http://andrei.gmxhome.de/bytecode/index.html